ddafceb6c2
Summary: Using ThreadLocalPtr as a flag to determine if a mutex is locked or not enables us to implement AssertNotHeld(). It also makes AssertHeld() actually correct. I had to remove port::Mutex as a dependency for util/thread_local.h, but that's fine since we can just use std::mutex :) Test Plan: make check Reviewers: ljin, dhruba, haobo, sdong, yhchiang Reviewed By: ljin CC: leveldb Differential Revision: https://reviews.facebook.net/D18171
This directory contains interfaces and implementations that isolate the rest of the package from platform details. Code in the rest of the package includes "port.h" from this directory. "port.h" in turn includes a platform specific "port_<platform>.h" file that provides the platform specific implementation. See port_posix.h for an example of what must be provided in a platform specific header file.